1976 CHEVROLET VEGA radiator cap

Downloaded from www.Manualslib.com manuals search engine ENGINE COOLING
SYSTEM
The recovery type cooling sys­
tem 'is standard on all Chevrolet
passenger cars. The coolant ex­
pands with rising temperature and
the overflow
is collected in the
recovery tank. When the system
temperature drops, the coolant
is
drawn back into the radiator. The
cooling system has been filled at
the factory with a high -quality, in­
hibited ,
year-around coolant that
meets the standards of General
Motor s Specification 1899-M. This
coolant solution provides freezing
protection to
-20oP (- 28 °C),
and in Canada to -35°P
(-37°C), and it has been formu­
lated to be used without replace­
ment for two years
or 30,000 miles.
After two years or
30,000 miles,
the coolant should be drained to
prevent rust
or corrosion in the
radiator and engine.
Cooling System Care
Do not remove radiator cap to
check coolant level, but check visu­
ally in the
"see thru" coolant re­
covery tank at
least as frequently
as needed. Level should be at the
"full cold" mark on the recovery
tank when the system
is cold and
at the
"full hot" mark at normal
operating temperature.
Add a 50/
50
mixture of high-quality ethylene
glycol antifreeze and water for
coolant additions.
If frequent addi­
tions are required, see
your' dealer
for a cooling system check.
NOTE: If recommended quality
antifreeze
is used, supplemental in­
hibitors or additives claiming to
provide increased capability are not
necessary. They may be detrimen­
tal to the efficient operation of the
system, and represent an unneces­
sary operating expense.
5-7
The cooling system should be
serviced every year as follows:
1. Wash radiator cap and filler neck
with clean water.
2. Check coolant for proper level
and freeze protection.
3 . Test system and radiator cap for
proper pressure holding capacity
(15 psi). If required, use cap
designed by
AC for coolant re­
covery systems, and specified for
your model.
4. Tighten hose clamps and inspect
all hoses. Replace hoses if swol­
len, checked or otherwise deteri­
orated.
5 . Clean frontal area of radiator
core and air conditioning con­
denser.

Downloaded from www.Manualslib.com manuals search engine Every two years or 30,000 miles,
whichever occurs first, the cooling
system should be· flushed and re­
filled using
the following recom­
mended procedure:
1. Remove radiator cap when en­
gine
is cool:
• Rotate cap slowly counter­
clockwise to detent
(Do not
press down while rotating.)
• Wait until residual pressure
(indicated by a hissing
sound) is relieved, then press
down on cap and continue
to rotate counterclockwise.
2.
Run engine, with radiator cap
removed, until upper radiator
hose
is hot (indicates thermo­
stat
is open). 3.
Stop engine
and open radiator
valve to drain coolant. (Opera­
tion may be speeded by remov­
ing drain plugs in the block.)
4. Close valve (install block drain
plugs, if removed) and add
sufficient water to
fill system.
5. Repeat steps 1, 2, 3, and 4, a
sufficient number of times until
the drained liquid is nearly
colorless.
6. Allow system to drain com­
pletely and then close radiator
drain valve tightly. (Install
block drain plugs, if removed.)
7. Remove recovery cap leaving
hoses in place. Remove coolant
recovery tank,. empty fluid,
scrub and clean bottom and
sides of tank with detergent and
water, flush well with clean
water, drain and reinstall.
5-8
8. Add sufficient ethylene glycol
coolant, meeting
GM Specifica­
tion 1899-M, to provide the re­
quired freezing and corrosion
protection-at least a 50 per­
cent solution
-34°F, -37°C.
Fill radiator to the base of the
radiator filler neck and bring
level of coolant in the recovery
tank to the
"FULL HOT"
mark. Reinstall recovery tank
cap.
9.
Run engine, with radiator cap
removed, until radiator upper
hose becomes hot.
10. With engine idling, add coolant
to radiator until level reaches
bottom of filler neck; install cap
making certain arrows line up
with overflow tube.
It is the owner's responsibility to:
• Maintain cooling system freeze

Downloaded from www.Manualslib.com manuals search engine protection at -20o
P (-28°C) or
below to ensure protection against
corrosion
and · loss of coolant
from boiling even though freezing
temperatures are not expected.
• Add ethylene glycol base coolant
that meets
GM Specification
1899-M when coolant additions
are required because of coolant
loss
or to provide additional pro­
tection against freezing at tem­
peratures lower than -20oP
(-28°C), and in Canada to
-35°P (-37°C).
NOTE: Alcohol or methanol base
coolants or plain water are not
recommended for your vehicle at
any time.
Your vehicle, if equipped with
standard 4-cylinder engine, has
an aluminum cylinder block.
When adding anti-freeze, rust
inhibitors, or cleaners, make
certain they are safe for
use
with aluminum components.
Radiator Pressure Cap
The radiator cap, a 15 lb. pres­
sure type, must be installed tightly,
otherwise coolant may be lost and
damage
t6 engine may result from
overheating. Radiator pressure caps
should be checked periodically for
proper operation.
If replacement is
required specify AC.
Thermostat
The cooling system is protected
and controlled by a thermostat that
maintains a satisfactory engine
operating temperature. This
ther­
mostat is installed in the engine
coolant outlet and
is designed for
continuous use through both winter
and summer. When replacement
is
necessary, Delco parts are recom­
mended.
5-9
CHASSIS ITEMS
Rear Axle Lubricant
Standard -Every 6 months or
7,500 miles, whichever occurs first,
check lubricant level and add
lubri­
cant, if necessary, to fill to level of
filler plug hole.
Use SAE 80W or
SAE80W-90GL-5 Gear Lubricant.
cant.
(Por vehicles operated in
Canada, use
SAE 80W Gear Lubri­
cant.)
Positraction -Drain aJ,ld refill
after the first 15,000 miles then
maintain same
as standard axle but
use only the special positraction lu­
bricant available from your Chev­
rolet Dealer, part number 1051022.

Downloaded from www.Manualslib.com manuals search engine SPECIFICATIONS
VEHICLE IDENTIFICATION NUMBER
Car-Stamped on· Vehicle Identification Plate attached to left
of Instrument panel.
Engine-Stamped
on boss on right side of block, below No. 3
spark plug.
Body-Stamped
on plate attached to cowl panel.
DIMENSIONS
Overall
Length . .........•••••.••••.•..•.•......••\
175.4"
Height (Hatchback) ............................... 50.0"
(Wagon and Notchback) ...•....•........... 51.8"
Width ..........•......••••...•.•...•..•..•.....\
. 65.4"
Wheelbase 97.0"
BATTERY RATING
ENGINE VOLTS
WATTS * RESERVE** CAPACITY
L4-140
12 Std. 2300 60 min. cu. in. 12 H.b. 3200 80 min.
'Cranking power at O°F.
"Minutes before battery drops to 10V2 volts with a continuous 25 amp. drain.
6-1
U.S. CAPACITIES Measure
Gasoline Tank (approx.) . . . . . . . . . . . .
••. 16 gal.
Crankcase
(Refill)
Oil
change only 3V2 ql.
Oil
and Filter change ..•...•....... 4 qt.
Axle (Refill) ..•.•.................... 2~ pts.
Cooling System:
Thermostat All
U.S. Measure
(qts.)
8
Imperial Measure (qts.)
6~
Imperial Measur.
13V4 gal.
3 qt.
3V4 qt.
2V4 pts.
All engines
...................•....•.........•..... 195°
Radiator Pressure Cap ••••••••••••••••••\
••••.•••.••. 15 lb.

Downloaded from www.Manualslib.com manuals search engine Air Conditioning System Compressor 011 (525 vis.) '" . • • • . . • • • . • • . . • • • . . . . . .. 11 oz.
Refrlgerant-R-12
...•••.•..........•.......... 2 lb. 13 oz.
Turbo Hydra-matlc ., ......•.....••.
3-speed Transmission •..•....•••.••
4-speed Transmission ............ .
5-speed Transmission
............ .
U.S. Measure
10.0 qts.
3.0 pts.
3.0 pts.
3.0 pts.
Imperial Measure
8.25 qts.
2.5 pis.
2.5 pis.
2.5 pts.
ITEM
Engine Oil Filter
Radiator
Cap
Gasoline Cap
Air Cleaner (1 bbl.)
(2 bbl.)
Carburetor
Fuel Filter
Positive Crankcase Valve
6-2
TURN SIGNAL FLASHER:
Type
..•.•.••.•••••••.•••.••.•••••...••••.•.• . Capacity
Turn Signal ..•.•.••.•..•••••••••••.\
•••••.• 2 lamp (LL) Hazard Warning Flasher, All ..••..•.•..•••••.•... 6 lamp
TIRE INFORMATION:
Wheel Nut Torques Standard Wheels .............................. 80 ft. Ibs. Aluminum Wheels ............................. 9011. Ibs. Complete tire information will be found in section 5 of this manual.
RECOMMENDATION
AC Type PF25
AC Type RC33
AC Type GT85
AC Type A541 C
AC Type A595C
AC Type
GF470
AC Type CV789C